# SONOFF SNZB-09P

*SONOFF / SNZB-09P*

> The SNZB-09P (SenseGuard Indoor Siren) is a Zigbee 3.0 indoor siren with a 105 dB alarm, ten alarm tones and a light. It runs on USB-C power with a backup battery and needs a compatible SONOFF Zigbee hub. It suits SmartThings and Home Assistant users through an integration (Zigbee).

- Canonical page: https://smarthomecanon.com/devices/sonoff-snzb-09p
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Siren or alarm speaker |
| Model numbers | SNZB-09P |
| Status | Current[^1] |
| Type | Siren[^1] |
| Flow meter | No[^1] |
| Channels | unknown |
| Power | USB-C 5 V, 1 A with a backup battery[^1] |
| Protocol | Zigbee 3.0[^1] |

## Integration paths

**How the SONOFF SNZB-09P connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | A compatible SONOFF Zigbee hub[^1] | unknown | Native ZHA support is an unmerged pull request, so a SONOFF script is needed for full features[^1] |

**Platform support for the SONOFF SNZB-09P**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Zigbee | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] | SONOFF dongle; ZHA needs a script |
| Zigbee | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |

## Related pages

- [SONOFF water valves, sirens and USB adapters](https://smarthomecanon.com/lines/sonoff-valves-sirens-and-other) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Zigbee](https://smarthomecanon.com/protocols/zigbee) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)

## Sources

[^1]: SONOFF Zigbee SenseGuard Indoor Siren | SNZB-09P. https://sonoff.tech/products/sonoff-zigbee-senseguard-indoor-siren-snzb-09p (manufacturer, checked 2026-10-13)